EB 37

Oil · District 10 · Lease #35198

Operator: COSTILLA ENERGY, INC.

Cum Oil

2k BBL

Cum Gas

0 MCF

Wells

1

Production

1996-11 — 1998-03

Peak Month

1996-11

Production History

Cum Oil: 1,605 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

242 BBL/mo

Di (annual)

189.2%

b-factor

0.1

EUR

1,694 BBL

R-squared

0.501

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1COSTILLA PETROLEUM CORPORATION19,0001996-08-22
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